/* https.c
* HTTPS protocol client implementation
* (c) 2002 Mikulas Patocka
* This file is a part of the Links program, released under GPL.
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
#include "links.h"
#ifndef PATH_MAX
#define PATH_MAX 255
#endif
#ifdef HAVE_SSL
SSL_CTX *context = NULL;
SSL *getSSL(void)
{
if (!context) {
char f_randfile[PATH_MAX];
const char *f = RAND_file_name(f_randfile, sizeof(f_randfile));
if (f && RAND_egd(f)<0) {
/* Not an EGD, so read and write to it */
if (RAND_load_file(f_randfile, -1))
RAND_write_file(f_randfile);
}
SSLeay_add_ssl_algorithms();
context = SSL_CTX_new(SSLv23_client_method());
SSL_CTX_set_options(context, SSL_OP_ALL);
SSL_CTX_set_default_verify_paths(context);
/* needed for systems without /dev/random, but obviously kills security. */
/*{
char pool[32768];
int i;
struct timeval tv;
gettimeofday(&tv, NULL);
for (i = 0; i < sizeof pool; i++) pool[i] = random() ^ tv.tv_sec ^ tv.tv_usec;
RAND_add(pool, sizeof pool, sizeof pool);
}*/
}
return (SSL_new(context));
}
void ssl_finish(void)
{
if (context) SSL_CTX_free(context);
}
void https_func(struct connection *c)
{
c->ssl = (void *)-1;
http_func(c);
}
#else
void https_func(struct connection *c)
{
setcstate(c, S_NO_SSL);
abort_connection(c);
}
#endif